/* Guspira — panel styles.
   Everything visual is a custom property on .gui, so a theme is a variable override rather
   than a fork of this file. The variables also reach the <range-slider> shadow root, since
   custom properties inherit across the shadow boundary. */

.gui {
  --gui-bg: #2c2c2c;
  --gui-fg: #e0e0e0;
  --gui-muted: #888;
  --gui-field-bg: #3e3e3e;
  --gui-border: #555;
  --gui-focus: #888;
  --gui-accent: #ffffff;
  --gui-btn-bg: #4a4a4a;
  --gui-btn-hover: #5a5a5a;
  --gui-btn-active: #333333;
  --gui-track: #333333;
  --gui-fill: #e0e0e0;
  --gui-thumb: #ffffff;
  --gui-thumb-hover: #f0f0f0;
  --gui-check: var(--gui-bg);
  --gui-font:
    "Segoe UI",
    system-ui,
    sans-serif;
  --gui-font-size: 13px;
  --gui-padding: 20px;
  --gui-gap: 8px;
  --gui-row-height: 24px;
  --gui-label-width: 140px;
  --gui-radius: 4px;
  --gui-panel-radius: 6px;
  --gui-check-size: 16px;
  --gui-track-height: 4px;
  --gui-graph-height: 38px;
  --gui-warn: #ff6b4a;
  --gui-series-1: #4c7c0c;
  --gui-series-2: #fcb300;
  --gui-series-3: #c74900;
  --gui-series-4: #850700;
  --gui-series-5: #284280;
  --gui-pad-height: 90px;
  --gui-pad-dot-size: 10px;
  --gui-max-height: calc(100vh - 80px);
  position: relative;
  background-color: var(--gui-bg);
  color: var(--gui-fg);
  font-family: var(--gui-font);
  font-size: var(--gui-font-size);
  padding: var(--gui-padding);
  border-radius: var(--gui-panel-radius);
  box-shadow: var(--shadow-panel, 0 2px 6px rgba(0, 0, 0, 0.3));
  z-index: 9999;
  user-select: none;
  display: none;
}
.gui.visible {
  display: block;
}
.gui.gui-light {
  --gui-bg: #f4f4f5;
  --gui-fg: #1c1c1e;
  --gui-muted: #6b6b70;
  --gui-field-bg: #ffffff;
  --gui-border: #c9c9cd;
  --gui-focus: #6b6b70;
  --gui-accent: #1c1c1e;
  --gui-btn-bg: #e6e6e9;
  --gui-btn-hover: #dcdce0;
  --gui-btn-active: #cfcfd4;
  --gui-track: #d4d4d8;
  --gui-fill: #3f3f46;
  --gui-thumb: #ffffff;
  --gui-thumb-hover: #f4f4f5;
  --gui-check: #f4f4f5;
  box-shadow: var(--shadow-panel, 0 2px 6px rgba(0, 0, 0, 0.12));
}
/* The fold controls are buttons, for the keyboard's sake, but they are headings and should read
   as headings: text and a chevron, nothing else. Font size is left to each of them rather than
   reset here, or this rule would flatten the section title's small caps. */
.gui-title,
.gui-section-title {
  appearance: none;
  -webkit-appearance: none;
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  width: 100%;
  text-align: left;
  font-family: inherit;
  color: inherit;
}

.gui-title:focus-visible,
.gui-section-title:focus-visible,
.gui-tab-btn:focus-visible {
  outline: 2px solid var(--gui-focus);
  outline-offset: 2px;
}

.gui-title {
  display: flex;
  flex-direction: row;
  font-size: 12px;
  font-weight: bold;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.gui-chevron {
  display: flex;
  align-items: center;
  transition: transform 150ms ease-in-out;
}
.gui-chevron svg {
  height: 12px;
  width: 12px;
}
.gui.collapsed .gui-title > .gui-chevron {
  transform: rotate(-90deg);
}
.gui-scroller {
  max-height: var(--gui-max-height);
  overflow: auto;
  scrollbar-width: none;
}
.gui-scroller::-webkit-scrollbar {
  display: none;
}
.gui-rows {
  interpolate-size: allow-keywords;
  display: flex;
  flex-direction: column;
  gap: var(--gui-gap);
  opacity: 0;
  height: 0;
  overflow: hidden;
  transition: height 100ms ease-in-out, opacity 100ms ease-in-out;
  border-top: 1px solid var(--gui-muted);
}
.gui-rows.visible {
  height: auto;
  margin-top: 12px;
  padding-top: 12px;
  opacity: 1;
}
.gui-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--gui-gap);
  min-height: var(--gui-row-height);
}
.gui-row.disabled,
.gui-section.disabled {
  pointer-events: none;
  opacity: 0.5;
}
.gui-hidden {
  display: none !important;
}
.gui-label {
  opacity: 0.8;
  flex: 1 1 auto;
  min-width: 0;
}
.gui-label.gui-randomizable {
  cursor: pointer;
  text-decoration: underline dotted transparent;
  text-underline-offset: 3px;
  transition: text-decoration-color 120ms ease-in-out, opacity 120ms ease-in-out;
}
.gui-label.gui-randomizable:hover {
  opacity: 1;
  text-decoration-color: var(--gui-muted);
}
/* The base look for the form elements. This is wrapped in :where() so it carries no specificity
   at all: every purpose-built rule below — .gui-btn, .gui-tab-btn, .gui-color — then overrides
   it by simply existing, rather than having to out-specify a `.gui button` selector, and a page
   restyling the panel from outside does not have to either. Without this the base rule quietly
   won, and --gui-btn-bg, the tab shape and the colour swatch's padding all had no effect. */
:where(.gui) :where(input, select, button, textarea) {
  /* One stated height for every field rather than one arrived at by padding arithmetic. A
     select is sized by the browser, a button by its padding and an input by its line-height,
     so left alone they land two or three pixels apart and a row of them looks ragged. This is
     the panel's own row height, which is the rhythm everything else is already on. */
  box-sizing: border-box;
  height: var(--gui-row-height);
  background: var(--gui-field-bg);
  border: 1px solid var(--gui-border);
  color: var(--gui-fg);
  padding: 0 6px;
  border-radius: var(--gui-radius);
  font-size: 12px;
  font-family: inherit;
  line-height: 1;
  outline: none;
}
.gui input:focus,
.gui select:focus,
.gui button:focus-visible {
  border-color: var(--gui-focus);
}
.gui input[type=checkbox] {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 auto;
  width: var(--gui-check-size);
  height: var(--gui-check-size);
  padding: 0;
  border: 1px solid var(--gui-border);
  border-radius: var(--gui-radius);
  background: var(--gui-field-bg);
  cursor: pointer;
  transition: background-color 90ms ease-in-out, border-color 90ms ease-in-out;
}
.gui input[type=checkbox]:hover {
  border-color: var(--gui-focus);
}
.gui input[type=checkbox]:checked {
  background: var(--gui-accent);
  border-color: var(--gui-accent);
}
.gui input[type=checkbox]::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 46%;
  width: 0.3em;
  height: 0.62em;
  border: solid var(--gui-check);
  border-width: 0 2px 2px 0;
  transform: translate(-50%, -50%) rotate(45deg) scale(0.6);
  opacity: 0;
  transition: opacity 90ms ease-in-out, transform 90ms ease-in-out;
}
.gui input[type=checkbox]:checked::after {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(45deg) scale(1);
}
.gui-control,
.gui-select,
.gui-input-text,
.gui-input-number,
.gui-color {
  flex: 0 0 calc(100% - var(--gui-label-width));
  min-width: 0;
}
.gui-color {
  height: var(--gui-row-height);
  padding: 0;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}
.gui-color::-webkit-color-swatch-wrapper {
  padding: 2px;
}
.gui-color::-webkit-color-swatch {
  border: none;
  border-radius: 2px;
}
/* A joined row of buttons: one border between neighbours rather than two, so it reads as one
   control with a part selected rather than as several separate buttons. */
.gui-segmented {
  display: flex;
}
.gui-segment {
  flex: 1 1 0;
  min-width: 0;
  font-size: 11px;
  color: var(--gui-muted);
  cursor: pointer;
  border-radius: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: background-color 90ms ease-in-out, color 90ms ease-in-out;
}
.gui-segment + .gui-segment {
  margin-left: -1px;
}
.gui-segment:first-child {
  border-radius: var(--gui-radius) 0 0 var(--gui-radius);
}
.gui-segment:last-child {
  border-radius: 0 var(--gui-radius) var(--gui-radius) 0;
}
.gui-segment:hover {
  color: var(--gui-fg);
}
.gui-segment.active {
  background: var(--gui-btn-bg);
  color: var(--gui-fg);
  border-color: var(--gui-focus);
  /* Above its neighbours, so its own border is the one drawn on both shared edges. */
  position: relative;
  z-index: 1;
}
.gui-segment:focus-visible {
  outline: 2px solid var(--gui-focus);
  outline-offset: -2px;
  z-index: 2;
}
.gui-textarea {
  /* Multi-line by definition, so the single-line height above does not apply. */
  height: auto;
  padding: 4px 6px;
  width: 100%;
  resize: vertical;
  line-height: 1.45;
  font-family: inherit;
}
/* A number field you can drag says so with the cursor — until it is being typed into, when it
   is an ordinary text field again. */
.gui-scrubbable {
  cursor: ew-resize;
}
.gui-scrubbable:focus {
  cursor: text;
}
/* Set on the body for the length of a drag: the pointer leaves the field almost immediately,
   and without this the cursor flickers back and the drag selects text across the page. */
body.gui-scrubbing,
body.gui-scrubbing * {
  cursor: ew-resize !important;
  user-select: none !important;
}
/* Some controls are too tall to sit beside a label: the row turns on its side, label and
   reading on a line of their own, the control across the full width beneath them. */
.gui-row.gui-row-block {
  flex-direction: column;
  align-items: stretch;
  gap: 3px;
}
.gui-block-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--gui-gap);
}
.gui-graph {
  flex: 1 1 auto;
  min-width: 0;
}
.gui-graph-val {
  flex: 0 0 auto;
  text-align: right;
}
/* Held, not flat: dimmed so a frozen graph does not read as a broken one. */
.gui-graph.gui-graph-paused {
  opacity: 0.45;
}
/* Past its budget the reading says so — the graph draws its threshold line in the same colour. */
.gui-monitor.gui-over {
  color: var(--gui-warn);
  opacity: 1;
}
/* A vector's axes share the control column and split it evenly. min-width: 0 is what lets a
   number input shrink below the width of its own content instead of pushing the label out. */
.gui-vector {
  display: flex;
  gap: 4px;
}
.gui-vector-axis {
  flex: 1 1 0;
  min-width: 0;
}
/* The pad's two centre lines are drawn as backgrounds rather than as elements, so the dot
   stays the only child and there is nothing else to keep positioned. */
.gui-pad {
  position: relative;
  height: var(--gui-pad-height);
  cursor: crosshair;
  touch-action: none;
  border: 1px solid var(--gui-border);
  border-radius: var(--gui-radius);
  background:
    linear-gradient(var(--gui-border), var(--gui-border)) 50% 0 / 1px 100% no-repeat,
    linear-gradient(var(--gui-border), var(--gui-border)) 0 50% / 100% 1px no-repeat,
    var(--gui-field-bg);
}
.gui-pad:focus-visible {
  outline: 2px solid var(--gui-focus);
  outline-offset: 2px;
}
.gui-pad-dot {
  position: absolute;
  width: var(--gui-pad-dot-size);
  height: var(--gui-pad-dot-size);
  margin: calc(var(--gui-pad-dot-size) / -2) 0 0 calc(var(--gui-pad-dot-size) / -2);
  border-radius: 50%;
  background: var(--gui-thumb);
  pointer-events: none;
}
.gui-pad:hover .gui-pad-dot {
  background: var(--gui-thumb-hover);
}
.gui-btn {
  width: 100%;
  cursor: pointer;
  background: var(--gui-btn-bg);
}
.gui-btn:hover {
  background: var(--gui-btn-hover);
}
.gui-btn:active {
  background: var(--gui-btn-active);
}
.gui-btn-group {
  display: flex;
  gap: 4px;
  flex: 1 1 auto;
  min-width: 0;
}
.gui-btn-group .gui-btn {
  flex: 1 1 0;
  width: auto;
  min-width: 0;
}
.gui-row.gui-compact {
  gap: 4px;
}
.gui-row.gui-compact > .gui-select,
.gui-row.gui-compact > .gui-input-text {
  flex: 1 1 auto;
}
.gui-btn-mini {
  flex: 0 0 auto;
  width: auto;
  padding: 0 9px;
}
.gui-monitor {
  flex: 0 0 auto;
  opacity: 0.7;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
}
.gui-slider-container {
  display: flex;
  align-items: center;
  gap: var(--gui-gap);
  flex: 0 0 calc(100% - var(--gui-label-width));
  min-width: 0;
}
.gui-slider {
  flex: 1 1 auto;
  min-width: 0;
  cursor: pointer;
}
.gui-slider-val,
.gui-slider-edit {
  flex: 0 0 auto;
  width: 52px;
  text-align: right;
  opacity: 0.7;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.gui-range-val {
  width: auto;
  min-width: 52px;
}
.gui-slider-val {
  cursor: text;
}
.gui-slider-val:hover {
  opacity: 1;
}
.gui-slider-edit {
  opacity: 1;
  padding: 2px 4px;
}
.gui-text {
  width: 100%;
  opacity: 0.75;
  line-height: 1.4;
  font-size: 12px;
}
.gui-text a {
  color: inherit;
}
.gui-row:has(.gui-separator) {
  min-height: 12px;
  height: 12px;
}
.gui-separator {
  background: var(--gui-muted);
  opacity: 0.5;
  height: 1px;
  width: 100%;
}
.gui-tabbar {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}
.gui-tab-btn {
  flex: 1 1 auto;
  min-width: 46px;
  padding: 5px 4px;
  font-size: 11px;
  background: var(--gui-field-bg);
  border: 1px solid var(--gui-border);
  border-bottom: none;
  border-radius: var(--gui-radius) var(--gui-radius) 0 0;
  color: var(--gui-muted);
  cursor: pointer;
}
.gui-tab-btn:hover {
  color: var(--gui-fg);
}
.gui-tab-btn.active {
  background: var(--gui-bg);
  color: var(--gui-fg);
}
.gui-tab-panel {
  display: none;
}
.gui-tab-panel.active {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.gui-section {
  interpolate-size: allow-keywords;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.gui-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--gui-muted);
}
.gui-section-title.gui-collapsible {
  cursor: pointer;
}
.gui-section-title.gui-collapsible:hover {
  color: var(--gui-fg);
}
.gui-section-title .gui-chevron svg {
  height: 10px;
  width: 10px;
}
.gui-section:not(.open) .gui-section-title .gui-chevron {
  transform: rotate(-90deg);
}
.gui-section-body {
  display: flex;
  flex-direction: column;
  gap: var(--gui-gap);
  height: auto;
  overflow: hidden;
  transition: height 120ms ease-in-out;
}
.gui-section:not(.open) > .gui-section-body {
  height: 0;
}
@media (prefers-reduced-motion: reduce) {
  .gui-rows,
  .gui-section-body,
  .gui-chevron {
    transition: none;
  }
}